<template>
  <div class="login-container">
    <div class="login-box">
      <el-form ref="loginForm" :model="loginForm"
      :rules="loginRules" class="login-form"
      auto-complete="on"
      label-position="left">

      <div class="title-container">
        <em class="logo"></em>
        <h3 class="title">用户登录</h3>
        <toggleLang class="toggle-language"></toggleLang>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">{{$t('login.login')}}</el-button>

    </el-form>
    </div>
  </div>
</template>

<script>

import jsSHA from "jssha"
import toggleLang from '@/components/lang/index.vue'


export default {
  name: 'Login',
  components: {
    toggleLang
  },
  data() {
    const emailusername = (rule, value, callback) => {
      if (/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/.test(value)) {
        callback()
      } else {
        callback(new Error('Please enter the email user name'))
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'root@admin.com',
        password: '123456'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: emailusername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          const shaObj = new jsSHA("SHA-256", "TEXT", { encoding: "UTF8" })
          shaObj.update(this.loginForm.password)
          const hash = shaObj.getHash("HEX")
          
          this.$store.dispatch('user/login', {username:this.loginForm.username, password: hash})
          .then(() => {
            console.log('成功');
            this.$router.push('/')
          })
          .catch(()=>{
            console.log('失败');
          })
          .finally(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $bg;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background: url(~@/assets/bg.2f46505a.jpg);
  overflow: hidden;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  .login-box{
    margin: auto;
    padding-top: 10%;
    background: url(~@/assets/logingBg.989212c0.png) no-repeat 100% 100%;

  }

  .login-form {
    width: 520px;
    max-width: 100%;
    padding: 60px 35px 0;
    margin: 0 auto;
    overflow: hidden;
    background-color: #f5f5f5;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;
    .logo{
      background: url(~@/assets/下载.png);
      display: block;
      width: 35px;
      height: 26px;
      float: left;
    }
    .title {
      font-size: 22px;
      color: #000;
      text-align: left;
      font-weight: bold;
    }
    .toggle-language{
      float: right;
      margin-top: -45px;
    }
    ::v-deep.svg-icon{
      color: #606266!important;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
